Editing Internal capsule (section)

=== Posterior limb ===
The '''posterior limb''' of internal capsule (or '''occipital part''') is the portion of the internal capsule posterior to the genu.{{Citation needed|date=June 2023}} It is situated between the thalamus and the [[lentiform nucleus]].<ref name="Waxman-2009" />

The anterior half of the posterior limb contains fibers of the [[corticospinal tract]], and [[corticobulbar tract]] (in an anteroposterior somatotropic arrangement), as well as corticorubral fibres (passing from the frontal lobe to the [[red nucleus]]) that accompany the corticospinal tract.<ref name="Waxman-2009" />

The posterior third of the posterior limb contains: 
# [[Third-order neuron|Third-order sensory neurons]] passing from the posterolateral nucleus of thalamus to the [[postcentral gyrus]] (in an anteroposterior somatotropic arrangement)<ref name="Waxman-2009" />
# Fibers of the [[optic radiation]], from the lower visual centers to the cortex of the [[occipital lobe]];
# Acoustic fibers, from the [[lateral lemniscus]] to the [[temporal lobe]]
# Fibers that pass from the occipital and temporal lobes to the [[pontine nuclei]]

The '''retrolenticular part''' contains fibers from the optic system, coming from the [[lateral geniculate nucleus]] of the [[thalamus]]. More posteriorly, this becomes the [[optic radiation]]. Some fibers from the [[medial geniculate nucleus]] (which carry auditory information) also pass in the retrolenticular internal capsule, but most are in the sublenticular part.

The sublenticular part is beneath the lentiform nucleus, and contains fibers connecting with the temporal lobe. These include the [[auditory radiation]]s and [[temporopontine fibers]].